Chaeles hill



(No Model.) G. HILL.

PERMUTATION LOOK.

Patented Jan. 20, 1885.

B. H F.

ITIVE Z7102".

Unrrn PATENT rrrcn.

CHARLES HILL, OF LOS ANGELES, CALIFORNIA.

PERMUTATION-LOCK.

SPECIFICATION forming part of Letters Patent No. 3I0,892, dated January 20, 1885.

Application filed May 31, 1884.

To ctZZ whom it may concern:

Be it known that 1, CHARLES HILL, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Improvement in Permutation-Locks, of which the following is a specification.

My invention relates to the drivingtumblers of permutationlocks, in which such tumblers are screwed upon the end of their arbors.

The driving-tumbler in many of the permutation-locks in ordinary use is screwed upon its arbor, and its position thereon when the lock is in condition for use is invariable, so that the final number in the combination by which the lock is opened always remains the same.

The object of my invention is to provide a device by means of which the driving-tumbler in such a lock may be adapted for attachment to its arbor in such a manner that its position thereon can be changed so as to change the final number of the combination by which the lock is operated. I accomplish this object by means of the device described herein, and illustrated in the accompanying drawings, in which Figure l is a perspective view of the dialplate. arbor, and driving-tumbler of a lock provided with my improvement. Fig. 2 is an end view of the same, looking at the drivingtumbler, the set-screw being removed to err pose its socket I. Fig. 3 is a plan of the driving-tumbler. Fig. 4 is a section on line or m, Fig. 2. Fig. 5 illustrates the false arbor D, a being a side elevation, b a plan View, and c a section at y 3 Fig. 6 illustrates the lockingwasher B, d being a side elevation, and e a crosssection at z z.

I provide a false arbor, D, to screw upon the true arbor E in place of the driving-turnbler. This false arbor is provided with two pintles, O 0, upon opposite sides thereof and parallel with the arbor. I then provide a driving-tumbler, A, similar in construction to the tumbler belonging to the lock, except that (No model.)

the hole in the center, which fits upon the arbor, is made to fit upon the false arbor, and has notches Q around it corresponding in size to the pintles O. The outer end of the false arbor is threaded to receive the locking-washer B, which screws thereon to fasten the driving-tumbler on the false arbor. A threaded socket, I, in the arbor receives the set-screw F, and the countersink which receives the head of the screw extends into the washer and false arbor, so that when the screw is set the washer and false arbor will be securely locked and prevented from turning.

WVhen it is desired to shift the driving-tumbler and change the number which indicates the coincidence of the bolt and the slot in the driving-tumbler, the set-screw F is removed and the washer l3 unscrewed, thus allowing the tumbler A to be removed. It can then be turned until the pintles O O coincide with other notches in the nave of the tumbler, and thus the number at which the lock will open is changed.

The number of changes which can be made will be increased by increasing the number of notches in the tumbler.

Now, having described my invention,what I claim as new, and desire to secure by Letters Patent, is-

1. In a permutationdock, the following elements: the true arbor E, the false arbor D, adapted for attachment to the true arbor and having pintles or projections O thereon, as shown, and the driving tumbler having around its nave notches corresponding in size to the pintles O, allbeing in combination with each other, substantially as and for the purpose set forth.

2. The combination, ina permutation-lock,

of the true arbor E, false arbor D, notched tumbler A, and locking-washer B, substan tially as and for the purpose set forth.

CHARLES HILL. \Vitnesses:

J AS. R. TOWNSEND, GEORGE J. DENIS. 

